low cost and tax efficient. find out why nine out of ten large professional investors choose ishares for their etfs. ishares by blackrock. call 1-800-ishares for a prospectus which includes investment objectives, risks, charges and expenses. read and consider it carefully before investing. risk includes possible loss of principal. martha: president obama stepping up his push to overhaul gun control laws in this country with a campaign-style trip that he kicks off today. he will northbound minnesota talking about this. he is expected to call for universal background checks as well as a ban on assault weapons. former congresswoman gabrielle giffords' husband captain mark kelly says this assault weapons serve only one purpose. watch. >> i spent 25 years in the military. i know the value of having an assault weapon, and it's to kill a lot of people very quickly. i think they are way too readily available. i think in time we will be able to address those issues. martha: interesting comments there from him on "fox new